Thread guide feeding device for winding machines



June 10, 1941. E. ZINDEL THREAD GUIDE FEEDING DEVICE FOR WINDING MACHINES Filed June 27, 1959 2 Sheets-Sheet l June 10, 1941.

E. ZINDEL THREAD GUIDE FEEDING DEVICE FOR WINDING- MACHINE$ Filed June 27, 1939 2 Sheets-Sheet 2 Patented June 10, 1941 THREAD GUIIDE FEEDING DEVICE FOR WINDING MACHINES Ernst Zindel, Erlenbach, Switzerland, assignoi' to Maschinenfabrik Scha land rer; Erlenbach, Switzer- Application J 27', 1939, Serial No. 281,436 a Switzerland July 1,1938

5 Claimsr This invention relates'tothread guide feeding devices for winding machines comprising a triotion clamp provided with a spring-loaded control or clamping element which by intermittent cooperation with an abutment member releases the 1 thread guide forbeing advanced by a step, whereupon the clamping element produces a clamping effect in the direction that is, in parallelism with the feed movement. By this means the releasing of the friction clamp and the consequential feed I operation can be readily initiated and the influence of centrifugal action on the adjustable part of the clamp in the direction of the feed movement of the thread guideis eliminated.

A particular feature of the invention consists in a construction in which the abutment member reciprocates and cooperates with the clamping element when carrying out a corresponding traverse. a

This mode of releasing the friction clamp has the result that the winding in progress of formation hits a winding feeler member gently so that even fine textile threads, such as, for example, artificial silk filaments are not impaired.

In the accompanying drawings three embodiments of the invention are illustrated by way of example only, in which Fig. 1 shows an elevation of a first embodiment partly in section;

Fig. 2 is a top plan view thereof; a t

Fig. 3 is a sectional view of a portion of Fig. 1 on a larger scale;

Figs. 4 and 5 show cross sections on the lines I V--IV and VV in Fig. 3, respectively;

Fig. 6 shows a sectional elevation of a second embodiment;

Fig. 6a is a top plan View of details of Fig. 6 with certain parts omitted; and

Fig. 7 is a top plan view of a third embodiment partly in section. a v

In the first embodiment (Figs. 1 to 5), the winding spindle 2 projects from the casing I of the machine and is pushed to and fro longitudinally by the rotating traversing cam memher 3 during the operation of the machine. In

Fig. 2 the cover of the casing I is removed. A known type of driving member 4 i forked at one end portion and is secured to the winding spindle 2 by the forks encompassing said spindle. The lower portion of member 4, below spindle 2, is provided with a journal having a roller rotatably mounted thereon and said roller engages in a cam groove 5 of the cam member 25. As the cam rotates, the driving member 4 is reciprocated and drives the spindle Zon which itis secured v with this reciprocator'y motion. A toothed portion 6 of the driving spindle 2 meshes with a circumferentially toothed portion of the rotating cam member 3, whereby the spindle is also rotate'd.

The winding spindle carries a winding carrier or cop l which is detachably mounted thereon and cooperates with a healer member 8 by means of the winding being formed thereon. The feeler member ii is provided to this end with a conical bore, for the reception of the spool carrying the Winding in progress of formation, in a knownmann'er, and is mounted for rotation in a support 9 which is further provided with a thread guide Iii. The support 9 has a sleeve II by means ofwhich' it is displac'eably guided on a supporting bar- I2 which is secured at one end on the machine casing I and is supported in turn at its other end by means of an auxiliary bar I2 the other end of which is likewise secured to the machine casing I and forms a frame structure with" the supporting bar E2. The auxiliary bar [if secures at the same time the support 9 in vertical position during its intermittent displacingmovement on the supporting bar I2, while the operation of building the winding on the winding carrier lis in progress.

The. cam member 3 is rotatably driven'by a driving shaft I3 provided with gear teeth which mesh with gear teeth of member 3. By action of the winding spindle 2, which is longitudinally reciprocatedby means of the driving member 4, a feed rod 65 is reciprocated through the intermediary, of a rigid driving element I4, one end of which is fixed to'rod I5 and the other end of which lies between a pair of abutment discs I4 on' spindle 2. displaceably guided by the machine casing I. The driving element i4 is slidingly guided by a The feed rod I'5is longitudinally guide bar it arranged in the casing I of the .machin eaThe'feed rod i5, carries at its end pro jecting out of the machine casing I a clamp releasing abutment ii for cooperation with a clamping element or sleeve I9, which is slidingly supported by a tubular member I8 and the conical inner surface of which cooperates with looking balls 29. By this means the locking balls 26 inserted in recesses or openings extending through the tubu lar member 18 can be forced against a guide rod 2: which lies within member I8, thereby securing this rod in its position relative to the tubular member 58, that is, against longitudinal displacement. A compression spring 22 abuts against the clamping sleeve I9 at one end, whereas the other end bears on an abutment 23 which is fixed on the tubular member l8 and. receives the compression spring 22 in a bore thereof. The tube 18 is carried by a bracket 24 secured to the supporting bar l2.

During the winding or cop building operation the winding carrier 7 is moved to and fro in the longitudinal direction thereof by the axially shifting winding spindle 2, and the feed rod l carrying the abutment ll reciprocates longitudinally together with the winding spindle 2. l"he abutment ll, when hitting the clamping sleeve it! during its advance movement (in the direction away from the machine casing l), moves this clamping sleeve l9 longitudinally so as to release the locking engagement between tube l8 and rod 2|, as shown in dotted lines in Fig. 3. Due to the fact that the winding carried by the winding carrier '1 meets with the bore of the winding feeler member 8 at the same time, the latter is advanced by a step longitudinally of .the supporting bar 62 together with the support 9. Since the carrier 9 is positively connected to the guide rod 2i by means of the guide sleeve II to which said carrier is secured and an arm 25, rigidly connected at its ends to sleeve H and rod 2i respectively, the guide rod 2| being released from engagement with the locking balls shifts through the bore of the tube IS in the direction away from the winding feeler member 3 for one feed step. As above mentioned, the clamping sleeve l9 has been displaced longitudinally against the effort of the compression spring 22 acting thereon by the abutment l'l. During the return movement of the abutment l? the clamping sleeve I9 is moved into engagement with the locking balls 20 again by the influence of the compression spring 22, so that these balls secure the guide rod 2| in its new position of adjustment. In the course of the from shaft 30 and cam member 3 by means of a forked driving member 4, the forks of which straddle shaft 2 between the two parts of gear 5. The lower portion of member 4 is provided with a roller which takes into cam groove 5 of member 3. Drive member 4 is imparted the resultant of two motions, one the reciprocatory motion of cam member 3 imparted by cam member 34, stud and flange 35, and the other the reciprocatory motion imparted by the camming action of cam member 3 acting on drive member 4. These periodic axial displacements of the cam member 3 have the result that the winding spindle 2 is correspondingly additionally displaced for the purpose of axially shifting the position of thread reversal at the point of the winding cone for providing that the advanced positions of thread reversal alternate with axially rearwardly shifted positions of thread reversal with a view to obtaining a strong binding effect, as is known per se. ihe tube i8 receiving the guide rod 2| is, in this case, secured to the bar l2 by means of the bracket 24.

The supporting bar I2 is mounted in a bearing 31 provided on the auxiliary bar 12' and in a bearing 38 arranged on the casing I so as to be axially displaceable. The end of the supporting bar i2 inside of the casing l is provided with a crank arm 33 by means of which this bar is permanently urged against the corresponding end of the shaft 30 of the cam member 3 by action of a coil spring 40. Due to this arrangement the periodical axial displacements of the cam memher 3 are transmitted to the supporting bar I2 by means of the shaft 30. By this means the cooperation of the abutment member ll secured to the supporting bar 12 with the clamping sleeve l9, that is the release of this member, is brought about when the winding spindle 2 is displaced succeeding advance movement of the winding l lojthrou e o b ed motions of the two disspindle 2 the operations described are repeated, in that the abutment i1 hits the clamping sleeve i9 again so that the locking effect of this sleeve is temporarily rendered ineffective while the feeding by one step is carried out, whereupon the clamping sleeve l9 again locks the guide rod 21 connected with the winding feeler member 8 anew in the direction of the feed movement, and so forth.

In contrast thereto, in the second embodiment (Figs. 6 and 6a) the abutment I1 is arranged on the supporting bar [2 and the cam member 3 is axially displaceably arranged in bearings 3|, 32 by means of a shaft 30 carrying the same. A portion of the shaft 30 is in the form of a pinion 33 which is in driving engagement with an auxiliary cam member 34 which is constructed as a gear wheel and is mounted on an axle 34' parallel with the shaft 30. A stud 35 fixed to the casing engages in a circumferential groove provided in the auxiliary cam member 34 by which means this cam member 34 is axially reciprocated simultaneously with performing the rotating movement. The shaft 30 of the cam member 3 engages into a circumferential groove 34" in the auxiliary cam member 34 by means of a flange 35, whereby the latter member transmits the axial shifting movement inherent thereto to the shaft 33 of the cam member 3. In this way the cam member 3 is correspondingly periodically displaced in the axial direction, in a manner known per se. Shaft 2 is driven rotationally from shaft 30 by means of gear 5 which meshes with the gearing on the periphery of cam member 3. Shaft 2 is also driven reciprocatorily placing means (34, 35 and 36; and 3 and 4) in the axial direction away from the casing I. Therefore, with this embodiment, the abutment member 11 carries out only small displacing movements.

In the third embodiment, as shown in Fig. '7, the winding feeler element 8 is securely connected to a control rod 4| by means of its support 9 which is included in part in a hollow shaft 42. The thread guide has been omitted from the feeler member 8.. This hollow shaft 42 carries a driving member 43 which engages in a cam groove 44 of a traversing cam member 45 which is permanently rotated in the operation of the machine, whereby the hollow shaft 42 is axially reciprocated. On the hollow shaft 42 the clamping sleeve [9 is displaceably mounted which cooperates with the guide rod 4| by means of the locking balls 29. The compression spring 22 abutting against the clamping sleeve bears against an adjusting ring 46 secured to the hollow shaft 42. On the casing l of the machine an abutment member 41 is arranged by being secured to a tube 48 through which protrudes the hollow shaft 42 and which is axially displaceably arranged in a bearing 49 provided on the casing l and is fixed in position of adjustment by means of a screw 50.

As the hollow shaft 42 is displaced to the right considering the drawings, the winding feeler member 8 is moved toward the winding in progress of formation on the winding carrier I in order to be adapted to contact with the winding and thus to advance the feeler member 8 together with the support 9 by a step. To this end the clamping sleeve l9 must hit the abutment member 41 then at rest, so that the sleeve is pushed back against the influence of the compression spring 22. The driving member 43, the clamping sleeve l9, and the feeler member 8 are indicated in their respective positions in chain dotted lines. Subsequently, as the hollow shaft 12 is displaced in the direction opposite to that previously mentioned, the clamping sleeve I9 is moved by the spring 22 in the direction toward the casing 1, until it cooperates again with the locking balls 20 for exerting a locking action in the direction of the feed movement on the hollow shaft 42 and consequentially on the feeler 8.

If desired, the guide rod can be readily shifted to and fro by hand without the necessity for releasing the friction clamp by which means the displacing of the winding feeler member into the working position is facilitated, which is particularly advantageous for winding machines in which the full spools are automatically exchanged for empty spools. This feature results in widening the range of applicability of the friction clamp.

I claim:

1. In a winding machine, a, cop spindle, means for rotating said spindle, means for reciprocating said spindle longitudinally, a tube adjacent said spindle extending in substantially the same direction as said spindle and having an open end, a thread guide supporting rod extending into the open end of said tube, a longitudinally displaceable thread guide, means connecting said thread guide with said thread guide supporting rod, releasable means for locking said thread guide sup porting rod against longitudinal movement in said tube, said locking means comprising a clamping sleeve slidably mounted on said tube, means for resiliently pressing said sleeve in one longitudinal direction to effect locking action, reciprocatory abultment means for engaging said sleeve to periodically move it longitudinally in the releasing direction against the action of said resilient pressing means to release the guide rod and thread guide, whereupon the cop moves the thread guide and thread guide supporting rod one step and thereafter, upon reversal of direction of the reciprocatory abutment means, the resiliently pressed locking sleeve locks the thread guide supporting rod in newly-adjusted position with respect to the tube.

2. Apparatus according to claim 1 and in which the means for reciprocating the spindle comprises a rotating cam member, and means connecting the reciprocatory abutment means with said rotating cam to impart the reciprocating motion to said abutment means.

3. Apparatus according to claim 1 and in which the means for reciprocating the spindle comprises a rotating cam member, and means connecting the reciprocatory abutment means with the reciprocating winding spindle to impart the reciprocatory motion thereof to said abutment means.

4. Apparatus according to claim 1 and in which the means for reciprocating the spindle comprises two rotary cams, means for applying reciprocatory motion produced by one of said cams to the other cam, means for applying the reciprocatory motion generated by said one cam to said reciprocatory abutment, and means for drivingly connecting the winding spindle with the other cam whereby the driving spindle receives the combined reciprocatory motions of said two cams.

5. In a winding machine, a cop spindle, means for rotating said spindle, a rotatable cam for reciprocating said spindle, a shaft connected with said cam and reciprocated thereby, a tube adjacent said spindle extending in substantially the same direction as said spindle and having an open end, a thread guide supporting rod extending into the open end of said tube, a longitudinally displaceable winding feeler mounted on said thread guide supporting rod adjacent the end of the winding being formed, a thread guide connected with said feeler, means connecting said thread guide with said thread guide supporting rod, releasable means for locking said thread guide supporting rod against longitudinal movement in said tube, said locking means comprising a clamping sieeve slidably mounted on said tube, means for resiliently pressing said sleeve in one longitudinal direction to effect looking action, reciprocatory abutment means for engaging said sleeve to periodically move it longitudinally in the releasing direction against the action of said resilient pressing means to release the guide rod and thread guide, a supporting rod extending adjacent the winding spindle substantially parallel ,thereto, means for supporting said abutment means on said supporting rod, whereby in operation upon forward movement the abutment means engages the locking means and releases the locking engagement between the tube and thread guide supporting rod, and the winding being formed engages the feeler and moves said feeler and thread guide and the thread guide supporting rod one step to a newlyadjusted position of the thread guide supporting rod with respect to the tube, whereupon when the abutment reverses its direction, the locking means locks the said rod and tube in said adjustment.

ERNST ZINDEL. 

